Specifications

60 Appendix C: Glossary
■ AGP
Accelerated Graphics port. A high-performance interface
which is capable of displaying 3-D graphics at high speeds.
■ Band
One of the surfaces of a buffer. A grayscale image requires
one band. A color image requires three bands, one for each
color component.
■ Bandwidth
A term describing the capacity to transfer data. Greater
bandwidth is needed to sustain a higher transfer rate.
Greater bandwidth can be achieved, for example, by using a
wider bus.
■ Bus
A pathway along which signals are sent, generally in two
directions, for communication of data.
■ Color component
One of the components that make up a color space. Typically,
each component of a color image is stored in a separate band
of a multi-band buffer.
■ Color space
A color space is a way of representing and describing the
complete range of perceived colors. A number of color spaces
have been developed. Common color spaces are RGB and
HSL. Both describe the same range of perceivable colors.
■ Composite sync
A synchronization signal made up of two components: one
horizontal and one vertical.
■ Contiguous memory
A block of physical memory occupying a single, consecutive
series of locations.